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The feasibility of deflecting asteroids

It's the ultimate science fiction: The immense power of the sun is harnessed and converted into a massive phased array of laser beams that have the potential to intercept and deflect asteroids before they smash into Earth.

date9 hours ago in Space Exploration
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Image: LISA Pathfinder launch sequence

Scheduled for launch in late 2015, ESA's LISA Pathfinder will test key technologies for space-based observation of gravitational waves – ripples in the fabric of spacetime that are predicted by Albert Einstein's general ...

date11 hours ago in Space Exploration
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The dwarf planet Orcus

Since the early 2000s, more and more objects have been discovered in the outer solar system that resemble planets. However, until they are officially classified, the terms Kuiper Belt Object (KBO) and Trans-Neptunian Object ...

dateAug 31, 2015 in Space Exploration
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The dwarf planet Quaoar

The vast Kuiper Belt, which orbits at the outer edge of our solar system, has been the site of many exciting discoveries in the past decade or so. Otherwise known as the Trans-Neptunian region, small bodies have been discovered ...

dateAug 28, 2015 in Space Exploration
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60 days and 60 nights in bed

On 9 September, the first of 12 men will go to bed for 60 days as part of important research into stopping the wasting effects that spaceflight has on the human body. Although they may be putting their feet up, it is set ...

dateAug 28, 2015 in Space Exploration
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First signals from CALET on the ISS

Five days after it launched from the Tanegashima Space Center on board the HTV-5 Transport Module, operated by the Japan Aerospace Exploration Agency (JAXA), the CALorimetric Electron Telescope (CALET) docked at the International ...

dateAug 27, 2015 in Space Exploration
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New Horizons mission exceeds expectations

(Phys.org)—NASA's New Horizons mission, as the name suggests, is all about broadening our scientific horizons. The spacecraft, visiting the unexplored world of dwarf planet Pluto and its moons, continues to deliver more ...

Research may solve lunar fire fountain mystery

Tiny beads of volcanic glass found on the lunar surface during the Apollo missions are a sign that fire fountain eruptions took place on the Moon's surface. Now, scientists from Brown University and the Carnegie Institution ...

Dawn spacecraft sends sharper scenes from Ceres

The closest-yet views of Ceres, delivered by NASA's Dawn spacecraft, show the small world's features in unprecedented detail, including Ceres' tall, conical mountain; crater formation features and narrow, braided fractures.

IRIS and Hinode: A Stellar research team

Modern telescopes and satellites have helped us measure the blazing hot temperatures of the sun from afar. Mostly the temperatures follow a clear pattern: The sun produces energy by fusing hydrogen in its core, so the layers ...

Cassini image: Dark side of Enceladus

Enceladus looks as though it is half lit by sunlight in this view from NASA's Cassini spacecraft, but looks can be deceiving. The area on the right, where surface features can be made out, are actually illuminated by light ...

NASA is laser-focused on deep space communication

Today's technology has all but eliminated time delays in telecommunication on Earth, but when they do occur they can be frustrating, especially when trying to communicate complex or time sensitive information. The same type ...

Dust storms on Mars

In the 1870's astronomers first noted the presence of yellow clouds on the surface of Mars and suggested they were caused by windblown dust. Today, dust storms on Mars are well known and those that display visible structures ...

Cassini's final breathtaking close views of Dione

A pockmarked, icy landscape looms beneath NASA's Cassini spacecraft in new images of Saturn's moon Dione taken during the mission's last close approach to the small, icy world. Two of the new images show the surface of Dione ...

Do comet fractures drive surface evolution?

Extreme thermal stresses experienced by a comet as it orbits around the Sun could explain the extensive fracturing thought to drive its long-term surface erosion, say Rosetta scientists analysing high-resolution images of ...

When will we know we have found extraterrestrial life?

(Phys.org)—As we become more advanced in astronomy, continuously searching and finding lots of potentially habitable extrasolar planets that could harbor alien life, it seems that it's not a matter of if but when we will ...

Solar activity is declining—what to expect?

(Phys.org)—Is Earth slowly heading for a new ice age? Looking at the decreasing number of sunspots, it may seem that we are entering a nearly spotless solar cycle which could result in lower temperatures for decades. "The ...

Mystery of Saturn's 'F ring' cracked, says study

An enigmatic ring of icy particles circling Saturn, herded into a narrow ribbon by two tiny moons, was probably born of a cosmic collision, according to a study published Monday in Nature Geoscience.

LADEE spacecraft finds neon in lunar atmosphere
Rosetta's big day in the sun
Rosetta hits 'milestone' in comet's run past Sun
Gecko grippers moving on up
New Image of Pluto: 'Houston, We Have Geology'
Saturn's outer ring much bigger than thought
Martian glass: Window into possible past life?
'Blowing my mind': Peaks on Pluto, canyons on Charon
Unusual interactions between Pluto's moons
'Spectacular' meteor showers to light up the sky
How much contamination is OK on Mars 2020 rover?
Japan announces plans to send probe to Martian moon
Do micro-organisms explain features on comets?

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